Merge PR #48: feat: add Xiaohongshu source + Reddit public fallback

- Xiaohongshu search via local MCP service (opt-in, zero impact if service not running)
- Reddit public JSON fallback (works with zero API keys)
- Reddit priority: ScrapeCreators -> OpenAI -> public fallback
- Updated env.py: Reddit always available via public fallback

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

vendor/package/dist/lib/runtime-query-ids.d.ts

@@ -0,0 +1,33 @@
+export type RuntimeQueryIdSnapshot = {
+    fetchedAt: string;
+    ttlMs: number;
+    ids: Record<string, string>;
+    discovery: {
+        pages: string[];
+        bundles: string[];
+    };
+};
+export type RuntimeQueryIdSnapshotInfo = {
+    snapshot: RuntimeQueryIdSnapshot;
+    cachePath: string;
+    ageMs: number;
+    isFresh: boolean;
+};
+export type RuntimeQueryIdsOptions = {
+    cachePath?: string;
+    ttlMs?: number;
+    fetchImpl?: typeof fetch;
+};
+export type RuntimeQueryIdStore = {
+    cachePath: string;
+    ttlMs: number;
+    getSnapshotInfo: () => Promise<RuntimeQueryIdSnapshotInfo | null>;
+    getQueryId: (operationName: string) => Promise<string | null>;
+    refresh: (operationNames: string[], opts?: {
+        force?: boolean;
+    }) => Promise<RuntimeQueryIdSnapshotInfo | null>;
+    clearMemory: () => void;
+};
+export declare function createRuntimeQueryIdStore(options?: RuntimeQueryIdsOptions): RuntimeQueryIdStore;
+export declare const runtimeQueryIds: RuntimeQueryIdStore;
+//# sourceMappingURL=runtime-query-ids.d.ts.map